Find Cheap Flights from Portland to Costa Rica

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Portland to Costa Rica

(Round-trip)
Depart: Sat Sep 30 2017 Return: Wed Oct 4 2017 Trip spans 5 days
American Airlines
American Airlines
PWM
4:05a
SJO
4:50p
12h 45m
3 stops
SJO
3:00a
PWM
2:16p
11h 16m
3 stops
Depart: Sat May 20 2017 Return: Fri Jun 9 2017 Trip spans 21 days
United
United
PWM
10:38a
SJO
9:35a
46h 57m
2 stops
SJO
10:05a
PWM
5:11p
31h 06m
2 stops
Depart: Fri Sep 15 2017 Return: Mon Sep 18 2017 Trip spans 4 days
Delta
Delta
PWM
2:00a
SJO
9:46a
7h 46m
1 stop
SJO
3:20a
PWM
5:35p
14h 15m
1 stop
Depart: Sat Aug 5 2017 Return: Tue Aug 15 2017 Trip spans 11 days
Major Airline
Major Airline
PWM
9:45p
SJO
3:30p
17h 45m
1 stop
SJO
6:55p
PWM
8:39a
13h 44m
1 stop
Depart: Fri Jun 23 2017 Return: Sat Jul 1 2017 Trip spans 9 days
United
United
PWM
10:45a
LIR
9:40a
22h 55m
2 stops
LIR
8:40a
PWM
3:23a
18h 43m
1 stop
Depart: Sun Jul 23 2017 Return: Sat Aug 12 2017 Trip spans 21 days
American Airlines
American Airlines
PWM
8:43a
SJO
11:42a
26h 59m
1 stop
SJO
8:38a
PWM
6:02a
21h 24m
2 stops
Depart: Tue Sep 5 2017 Return: Tue Sep 19 2017 Trip spans 15 days
Delta
Delta
PWM
2:00a
SJO
9:46a
7h 46m
1 stop
SJO
9:00a
PWM
5:35p
8h 35m
1 stop
Depart: Wed Aug 9 2017 Return: Fri Aug 18 2017 Trip spans 10 days
United
United
PWM
4:35p
SJO
9:35a
17h 00m
2 stops
SJO
2:30a
PWM
1:21a
22h 51m
2 stops
Depart: Tue Aug 8 2017 Return: Fri Aug 18 2017 Trip spans 11 days
American Airlines
American Airlines
PWM
4:00a
SJO
11:42a
7h 42m
1 stop
SJO
10:35a
PWM
6:02a
19h 27m
1 stop
Depart: Sat Sep 16 2017 Return: Fri Sep 29 2017 Trip spans 14 days
Delta
Delta
PWM
2:00a
SJO
9:46a
7h 46m
1 stop
SJO
9:00a
PWM
5:35p
8h 35m
1 stop
Depart: Thu Aug 10 2017 Return: Fri Aug 18 2017 Trip spans 9 days
United
United
PWM
1:45a
SJO
6:20p
16h 35m
2 stops
SJO
2:30a
PWM
1:21a
22h 51m
2 stops
Depart: Sat May 6 2017 Return: Sat May 13 2017 Trip spans 8 days
American Airlines
American Airlines
PWM
3:45a
LIR
11:26a
7h 41m
1 stop
LIR
10:29a
PWM
7:52a
21h 23m
1 stop
Depart: Sun Sep 24 2017 Return: Sat Sep 30 2017 Trip spans 7 days
Delta
Delta
PWM
8:40a
SJO
5:40p
9h 00m
1 stop
SJO
9:00a
PWM
5:34p
8h 34m
1 stop
Depart: Mon Aug 7 2017 Return: Thu Aug 17 2017 Trip spans 11 days
American Airlines
American Airlines
PWM
1:47p
SJO
11:42a
21h 55m
2 stops
SJO
10:35a
PWM
3:56p
29h 21m
1 stop
Depart: Sat Jul 29 2017 Return: Sat Aug 5 2017 Trip spans 8 days
Delta
Delta
PWM
8:40a
LIR
6:30p
9h 50m
1 stop
LIR
7:30p
PWM
5:56a
10h 26m
1 stop
Depart: Sun Aug 6 2017 Return: Wed Aug 16 2017 Trip spans 11 days
American Airlines
American Airlines
PWM
4:00a
SJO
11:42a
7h 42m
1 stop
SJO
6:40a
PWM
5:30p
10h 50m
2 stops
Depart: Fri Aug 4 2017 Return: Fri Aug 18 2017 Trip spans 15 days
United
United
PWM
3:35p
SJO
9:35a
18h 00m
2 stops
SJO
2:30a
PWM
1:21a
22h 51m
2 stops
Depart: Mon Jun 26 2017 Return: Mon Jul 17 2017 Trip spans 22 days
Delta
Delta
PWM
8:44a
SJO
6:13p
9h 29m
1 stop
SJO
9:00a
PWM
5:35p
8h 35m
1 stop
Depart: Mon Jun 12 2017 Return: Wed Jun 21 2017 Trip spans 10 days
Delta
Delta
PWM
2:00a
SJO
9:50a
7h 50m
1 stop
SJO
9:05a
PWM
5:55p
8h 50m
1 stop
Depart: Wed Jul 19 2017 Return: Sun Jul 23 2017 Trip spans 5 days
Delta
Delta
PWM
2:00a
SJO
9:46a
7h 46m
1 stop
SJO
3:20a
PWM
5:35p
14h 15m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Portland
$508
Destination

Liberia
$659
San Jose
$508